Navigation Links
Pitt researchers create non-toxic clean-up method for potentially toxic nano materials
Date:12/16/2008

PITTSBURGHUniversity of Pittsburgh researchers have developed the first natural, nontoxic method for biodegrading carbon nanotubes, a finding that could help diminish the environmental and health concerns that mar the otherwise bright prospects of the super-strong materials commonly used in products, from electronics to plastics.

A Pitt research team has found that carbon nanotubes deteriorate when exposed to the natural enzyme horseradish peroxidase (HRP), according to a report published recently in Nano Letters coauthored by Alexander Star, an assistant professor of chemistry in Pitt's School of Arts and Sciences, and Valerian Kagan, a professor and vice chair of the Department of Environmental and Occupational Health in Pitt's Graduate School of Public Health. These results open the door to further development of safe and natural methodswith HRP or other enzymesof cleaning up carbon nanotube spills in the environment and the industrial or laboratory setting.

Carbon nanotubes are one-atom thick rolls of graphite 100,000 times smaller than a human hair yet stronger than steel and excellent conductors of electricity and heat. They reinforce plastics, ceramics, or concrete; conduct electricity in electronics or energy-conversion devices; and are sensitive chemical sensors, Star said. (Star created an early-detection device for asthma attacks wherein carbon nanotubes detect minute amounts of nitric oxide preceding an attack.)

"The many applications of nanotubes have resulted in greater production of them, but their toxicity remains controversial," Star said. "Accidental spills of nanotubes are inevitable during their production, and the massive use of nanotube-based materials could lead to increased environmental pollution. We have demonstrated a nontoxic approach to successfully degrade carbon nanotubes in environmentally relevant conditions."

The team's work focused on nanotubes in their raw form as a fine, graphite-li
'/>"/>

Contact: Morgan Kelly
mekelly@pitt.edu
412-624-4356
University of Pittsburgh
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers identify new anti-tumor gene
2. UAF researchers to present at AGU press briefing
3. Researchers create new class of fluorescent dyes to detect reactive oxygen species in vivo
4. GUMC researchers find gene function lost in melanoma and glioblastoma
5. Pitt, NETL researchers report molecular chain reaction thought to be impossible
6. MIT researchers explain mystery of gravity fingers
7. UC San Diego researchers use metagene portraits to reveal distinct stages of kidney formation
8. CSHL researchers map changing epigenetic modifications that enable transposons to run amok
9. UNH researchers track lobster migrations to improve population estimates
10. Siblings of mentally disabled face own lifelong challenges, according to researchers
11. Caltech researchers get first look at how groups of cells coordinate their movements
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... robotic system that can operate inside the bore of ... of a biomedical research partnership program at Brigham and ... if the robot, in conjunction with real-time MRI images, ... costly, and less discomforting for the patient. The novel ... therapies with greater precision. , Developed by a team ...
(Date:9/18/2014)... creatively manipulate spoken language is unique to humans. "The ... years of human evolution to make this possible are ... we now have," says Wolfgang Enard, Professor of Anthropology ... understand the molecular biological basis of language Enard has ... his latest study, undertaken in collaboration with scientists at ...
(Date:9/18/2014)... happy-go-lucky characters, so you might expect that most would ... fact some dogs are distinctly more pessimistic than others, ... "This research is exciting because it measures positive and ... offers researchers and dog owners an insight into the ... Melissa Starling, from the Faculty of Veterinary Science. Her ...
Breaking Biology News(10 mins):Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3Dogs can be pessimists too 2Dogs can be pessimists too 3
... is pleased to announce the winners of its 2010 awards. ... of the ESA Annual Meeting in San Diego, California, Sunday, ... on Tuesday, December 14, 8:00-9:00 p.m. The awardees are listed ... who have served ESA for at least 20 years through ...
... PHILADELPHIA Researchers at Kaiser Permanente have found that ... carcinoma in situ or DCIS) who have higher mammographic density ... in the breast opposite to the one with the initial ... Cancer Epidemiology, Biomarkers & Prevention , a journal of the ...
... to Research Careers) Program has announced the travel award ... Research (ASBMR) 2010 Annual Meeting in Toronto, Ontario, Canada ... to promote the entry of underrepresented minority students, postdoctorates ... community and to encourage the participation of young scientists ...
Cached Biology News:Entomological Society of America names 2010 Insect Science Award winners 2Entomological Society of America names 2010 Insect Science Award winners 3Entomological Society of America names 2010 Insect Science Award winners 4Entomological Society of America names 2010 Insect Science Award winners 5Entomological Society of America names 2010 Insect Science Award winners 6Entomological Society of America names 2010 Insect Science Award winners 7Entomological Society of America names 2010 Insect Science Award winners 8Entomological Society of America names 2010 Insect Science Award winners 9Entomological Society of America names 2010 Insect Science Award winners 10Entomological Society of America names 2010 Insect Science Award winners 11Entomological Society of America names 2010 Insect Science Award winners 12Entomological Society of America names 2010 Insect Science Award winners 13Entomological Society of America names 2010 Insect Science Award winners 14Entomological Society of America names 2010 Insect Science Award winners 15Breast density linked to increased risk of subsequent breast cancer 2
(Date:9/18/2014)... , Sept. 18, 2014  Neogen Corporation (Nasdaq: ... into a strategic agreement with Merck Animal Health to ... The Igenity Dairy Heifer Program consists of ... on the genetic potential of replacement dairy heifers. The ... is born, and is an excellent tool in the ...
(Date:9/18/2014)... 18, 2014 SeqLL Inc., the ... technology, announced today the closing of a $1M ... by Genomic Diagnostic Technologies, will increase the power ... , Founded in March 2013 by Daniel Jones, ... at Helicos BioSciences, SeqLL has continued to offer ...
(Date:9/18/2014)... touch in the course of a day - ... rely on the chemical industry to turn raw ... products into valuable chemicals that are the ingredients ... Sarina Sarina, who achieved outstanding progress in driving ... temperature using light instead of fossil fuels, has ...
(Date:9/18/2014)... York, NY (PRWEB) September 18, 2014 ... completed negotiations with Salem Realty Group and has acquired ... development space within the Salem Executive Complex adjacent to ... ceremony was held on Friday September 5th. Whitehouse Labs ... refit the entire space specifically for package testing. The ...
Breaking Biology Technology:Merck Animal Health to market Neogen's dairy genomic program 2SeqLL Closes Series-A Funding Round for Expansion of Single Molecule Sequencing 2Using solar energy to turn raw materials into ingredients for every day life 2Whitehouse Labs Announces Package Testing Laboratory Expansion 2Whitehouse Labs Announces Package Testing Laboratory Expansion 3Whitehouse Labs Announces Package Testing Laboratory Expansion 4
... PLYMOUTH MEETING, PA., Oct. 28 /PRNewswire-Asia-FirstCall/ ... or the "Company"), today announced,the appointment of Daniel P. ... Mr. Harrington brings more than thirty ... working with publicly traded,companies. Since 1995, he has been ...
... 28 Techne Corporation,s (Nasdaq: TECH ) consolidated ... decreased 6.4% to $26.8 million or $.72 per diluted ... share for the quarter ended September 30, 2008. ... foreign currency fluctuations, decreased consolidated net sales and lower ...
... ... An incident of terrorism, accident, or improper disposal of radioactive materials ... would impact the population with increased cancer and associated illnesses and ... network. In response to this threat, Technical Associates created the models ...
Cached Biology Technology:BMP Sunstone Appoints Daniel Harrington to Board of Directors 2Techne Corporation Releases Unaudited First Quarter Results For Fiscal Year 2010 2Techne Corporation Releases Unaudited First Quarter Results For Fiscal Year 2010 3Techne Corporation Releases Unaudited First Quarter Results For Fiscal Year 2010 4Techne Corporation Releases Unaudited First Quarter Results For Fiscal Year 2010 5Techne Corporation Releases Unaudited First Quarter Results For Fiscal Year 2010 6Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law 2Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law 3Safety in Drinking Water? Monitoring for Radioactive Contaminants Only Required Every Three, Six, or Nine Years per Federal Law 4
Mouse monoclonal [3G131] to Desmoglein 1 ( Abpromise for all tested applications). entrezGeneID: 1828 SwissProtID: Q02413...
Mouse monoclonal [2D7/1] to E.coli LPS ( Abpromise for all tested applications). Antigen: Tissue / cell preparation: Escherichia coli J5 cells....
COMING SOON: Anti-Mouse C5/C5b, Clone BB5.1. Monoclonal Antibody...
KAI 1 (G-2)...
Biology Products: